Merge "Build build_flags.json in soong" into main
diff --git a/aconfig/codegen/cc_aconfig_library_test.go b/aconfig/codegen/cc_aconfig_library_test.go
index d01d13b..2f6c1a6 100644
--- a/aconfig/codegen/cc_aconfig_library_test.go
+++ b/aconfig/codegen/cc_aconfig_library_test.go
@@ -74,11 +74,6 @@
     		srcs: ["libaconfig_storage_read_api_cc.cc"],
 			}
 
-			cc_library {
-    		name: "libaconfig_storage_protos_cc",
-    		srcs: ["libaconfig_storage_protos_cc.cc"],
-			}
-
 			cc_aconfig_library {
 				name: "my_cc_aconfig_library",
 				aconfig_declarations: "my_aconfig_declarations",
@@ -137,12 +132,6 @@
     		srcs: ["libaconfig_storage_read_api_cc.cc"],
 			}
 
-			cc_library {
-    		name: "libaconfig_storage_protos_cc",
-    		srcs: ["libaconfig_storage_protos_cc.cc"],
-			}
-
-
 			cc_aconfig_library {
 				name: "my_cc_aconfig_library",
 				aconfig_declarations: "my_aconfig_declarations",
@@ -214,12 +203,6 @@
 			srcs: ["libaconfig_storage_read_api_cc.cc"],
 			vendor_available: true,
 		}
-
-		cc_library {
-			name: "libaconfig_storage_protos_cc",
-			srcs: ["libaconfig_storage_protos_cc.cc"],
-			vendor_available: true,
-		}
 	`
 	result := android.GroupFixturePreparers(
 		PrepareForTestWithAconfigBuildComponents,
diff --git a/android/apex.go b/android/apex.go
index fcbd13e..2ac6ed0 100644
--- a/android/apex.go
+++ b/android/apex.go
@@ -350,7 +350,8 @@
 // ApexModuleBase provides the default implementation for the ApexModule interface. APEX-aware
 // modules are expected to include this struct and call InitApexModule().
 type ApexModuleBase struct {
-	ApexProperties ApexProperties
+	ApexProperties     ApexProperties
+	apexPropertiesLock sync.Mutex // protects ApexProperties during parallel apexDirectlyInAnyMutator
 
 	canHaveApexVariants bool
 
@@ -761,18 +762,22 @@
 
 // UpdateDirectlyInAnyApex uses the final module to store if any variant of this module is directly
 // in any APEX, and then copies the final value to all the modules. It also copies the
-// DirectlyInAnyApex value to any direct dependencies with a CopyDirectlyInAnyApexTag dependency
-// tag.
+// DirectlyInAnyApex value to any transitive dependencies with a CopyDirectlyInAnyApexTag
+// dependency tag.
 func UpdateDirectlyInAnyApex(mctx BottomUpMutatorContext, am ApexModule) {
 	base := am.apexModuleBase()
-	// Copy DirectlyInAnyApex and InAnyApex from any direct dependencies with a
+	// Copy DirectlyInAnyApex and InAnyApex from any transitive dependencies with a
 	// CopyDirectlyInAnyApexTag dependency tag.
-	mctx.VisitDirectDeps(func(dep Module) {
-		if _, ok := mctx.OtherModuleDependencyTag(dep).(CopyDirectlyInAnyApexTag); ok {
-			depBase := dep.(ApexModule).apexModuleBase()
+	mctx.WalkDeps(func(child, parent Module) bool {
+		if _, ok := mctx.OtherModuleDependencyTag(child).(CopyDirectlyInAnyApexTag); ok {
+			depBase := child.(ApexModule).apexModuleBase()
+			depBase.apexPropertiesLock.Lock()
+			defer depBase.apexPropertiesLock.Unlock()
 			depBase.ApexProperties.DirectlyInAnyApex = base.ApexProperties.DirectlyInAnyApex
 			depBase.ApexProperties.InAnyApex = base.ApexProperties.InAnyApex
+			return true
 		}
+		return false
 	})
 
 	if base.ApexProperties.DirectlyInAnyApex {
diff --git a/android/config.go b/android/config.go
index 76c590a..2d32f1c 100644
--- a/android/config.go
+++ b/android/config.go
@@ -827,6 +827,10 @@
 	return value == "0" || value == "n" || value == "no" || value == "off" || value == "false"
 }
 
+func (c *config) TargetsJava21() bool {
+	return c.IsEnvTrue("EXPERIMENTAL_TARGET_JAVA_VERSION_21")
+}
+
 // EnvDeps returns the environment variables this build depends on. The first
 // call to this function blocks future reads from the environment.
 func (c *config) EnvDeps() map[string]string {
@@ -1462,10 +1466,6 @@
 	return c.config.productVariables.ExtraVndkVersions
 }
 
-func (c *deviceConfig) VndkUseCoreVariant() bool {
-	return Bool(c.config.productVariables.VndkUseCoreVariant) && Bool(c.config.productVariables.KeepVndk)
-}
-
 func (c *deviceConfig) SystemSdkVersions() []string {
 	return c.config.productVariables.DeviceSystemSdkVersions
 }
diff --git a/android/filegroup.go b/android/filegroup.go
index a8326d4..ff0f74e 100644
--- a/android/filegroup.go
+++ b/android/filegroup.go
@@ -19,6 +19,7 @@
 	"strings"
 
 	"github.com/google/blueprint"
+	"github.com/google/blueprint/proptools"
 )
 
 func init() {
@@ -36,9 +37,9 @@
 
 type fileGroupProperties struct {
 	// srcs lists files that will be included in this filegroup
-	Srcs []string `android:"path"`
+	Srcs proptools.Configurable[[]string] `android:"path"`
 
-	Exclude_srcs []string `android:"path"`
+	Exclude_srcs proptools.Configurable[[]string] `android:"path"`
 
 	// The base path to the files.  May be used by other modules to determine which portion
 	// of the path to use.  For example, when a filegroup is used as data in a cc_test rule,
@@ -89,7 +90,7 @@
 }
 
 func (fg *fileGroup) GenerateAndroidBuildActions(ctx ModuleContext) {
-	fg.srcs = PathsForModuleSrcExcludes(ctx, fg.properties.Srcs, fg.properties.Exclude_srcs)
+	fg.srcs = PathsForModuleSrcExcludes(ctx, fg.properties.Srcs.GetOrDefault(ctx, nil), fg.properties.Exclude_srcs.GetOrDefault(ctx, nil))
 	if fg.properties.Path != nil {
 		fg.srcs = PathsWithModuleSrcSubDir(ctx, fg.srcs, String(fg.properties.Path))
 	}
diff --git a/android/selects_test.go b/android/selects_test.go
index 8089fbc..6f980ce 100644
--- a/android/selects_test.go
+++ b/android/selects_test.go
@@ -761,6 +761,23 @@
 				},
 			},
 		},
+		{
+			name: "Property appending with variable",
+			bp: `
+			my_variable = ["b.cpp"]
+			my_module_type {
+				name: "foo",
+				my_string_list: ["a.cpp"] + my_variable + select(soong_config_variable("my_namespace", "my_variable"), {
+					"a": ["a.cpp"],
+					"b": ["b.cpp"],
+					default: ["c.cpp"],
+				}),
+			}
+			`,
+			provider: selectsTestProvider{
+				my_string_list: &[]string{"a.cpp", "b.cpp", "c.cpp"},
+			},
+		},
 	}
 
 	for _, tc := range testCases {
diff --git a/android/variable.go b/android/variable.go
index a3fdafb..9a95563 100644
--- a/android/variable.go
+++ b/android/variable.go
@@ -181,8 +181,10 @@
 		// release_aidl_use_unfrozen is "true" when a device can
 		// use the unfrozen versions of AIDL interfaces.
 		Release_aidl_use_unfrozen struct {
-			Cflags []string
-			Cmd    *string
+			Cflags          []string
+			Cmd             *string
+			Required        []string
+			Vintf_fragments []string
 		}
 	} `android:"arch_variant"`
 }
@@ -362,7 +364,6 @@
 
 	PgoAdditionalProfileDirs []string `json:",omitempty"`
 
-	VndkUseCoreVariant         *bool `json:",omitempty"`
 	VndkSnapshotBuildArtifacts *bool `json:",omitempty"`
 
 	DirectedVendorSnapshot bool            `json:",omitempty"`
diff --git a/apex/aconfig_test.go b/apex/aconfig_test.go
index 726041c..14c0b63 100644
--- a/apex/aconfig_test.go
+++ b/apex/aconfig_test.go
@@ -23,6 +23,7 @@
 	"android/soong/genrule"
 	"android/soong/java"
 	"android/soong/rust"
+
 	"github.com/google/blueprint/proptools"
 )
 
@@ -173,10 +174,6 @@
 					name: "libaconfig_storage_read_api_cc",
 					srcs: ["libaconfig_storage_read_api_cc.cc"],
 				}
-				cc_library {
-					name: "libaconfig_storage_protos_cc",
-					srcs: ["libaconfig_storage_protos_cc.cc"],
-				}
 				aconfig_declarations {
 					name: "my_aconfig_declarations_bar",
 					package: "com.example.package",
@@ -436,10 +433,6 @@
 					name: "libaconfig_storage_read_api_cc",
 					srcs: ["libaconfig_storage_read_api_cc.cc"],
 				}
-				cc_library {
-					name: "libaconfig_storage_protos_cc",
-					srcs: ["libaconfig_storage_protos_cc.cc"],
-				}
 				aconfig_declarations {
 					name: "my_aconfig_declarations_foo",
 					package: "com.example.package",
@@ -501,10 +494,6 @@
 					name: "libaconfig_storage_read_api_cc",
 					srcs: ["libaconfig_storage_read_api_cc.cc"],
 				}
-				cc_library {
-					name: "libaconfig_storage_protos_cc",
-					srcs: ["libaconfig_storage_protos_cc.cc"],
-				}
 				aconfig_declarations {
 					name: "my_aconfig_declarations_foo",
 					package: "com.example.package",
diff --git a/apex/apex_test.go b/apex/apex_test.go
index 965b4be..4cac0cc 100644
--- a/apex/apex_test.go
+++ b/apex/apex_test.go
@@ -10709,10 +10709,6 @@
 			name: "libaconfig_storage_read_api_cc",
 			srcs: ["libaconfig_storage_read_api_cc.cc"],
 		}
-		cc_library {
-			name: "libaconfig_storage_protos_cc",
-			srcs: ["libaconfig_storage_protos_cc.cc"],
-		}
 	`)
 
 	mod := ctx.ModuleForTests("myapex", "android_common_myapex")
diff --git a/bin/allmod b/bin/allmod
new file mode 100755
index 0000000..f7d25e5
--- /dev/null
+++ b/bin/allmod
@@ -0,0 +1,21 @@
+#!/bin/bash
+
+# Copyright (C) 2024 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# List all modules for the current device, as cached in all_modules.txt. If any build change is
+# made and it should be reflected in the output, you should run 'refreshmod' first.
+
+cat $ANDROID_PRODUCT_OUT/all_modules.txt 2>/dev/null
+
diff --git a/bin/core b/bin/core
new file mode 100755
index 0000000..01dbd13
--- /dev/null
+++ b/bin/core
@@ -0,0 +1,48 @@
+#!/bin/bash
+
+# Copyright (C) 2024 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# core - send SIGV and pull the core for process
+# $1 = PID of process (e.g., $(pid mediaserver))
+#
+# NOTE: coredump_setup must be called once per boot for core dumps to be
+#       enabled globally.
+
+set -e
+
+PID=$1;
+
+if [ -z "$PID" ]; then
+    printf "Expecting a PID!\n";
+    exit 1
+fi;
+
+CORENAME=core.$PID;
+COREPATH=/cores/$CORENAME;
+SIG=SEGV;
+
+coredump_enable $1;
+
+done=0;
+while [ $(adb shell "[ -d /proc/$PID ] && echo -n yes") ]; do
+    printf "\tSending SIG%s to %d...\n" $SIG $PID;
+    adb shell kill -$SIG $PID;
+    sleep 1;
+done;
+
+adb shell "while [ ! -f $COREPATH ] ; do echo waiting for $COREPATH to be generated; sleep 1; done"
+echo "Done: core is under $COREPATH on device.";
+
+
diff --git a/bin/coredump_enable b/bin/coredump_enable
new file mode 100755
index 0000000..da63a0c
--- /dev/null
+++ b/bin/coredump_enable
@@ -0,0 +1,32 @@
+#!/bin/bash
+
+# Copyright (C) 2024 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# coredump_enable - enable core dumps for the specified process
+# $1 = PID of process (e.g., $(pid mediaserver))
+#
+# NOTE: coredump_setup must have been called as well for a core
+#       dump to actually be generated.
+
+set -e
+
+PID=$1;
+if [ -z "$PID" ]; then
+    printf "Expecting a PID!\n";
+    exit 1
+fi;
+echo "Setting core limit for $PID to infinite...";
+adb shell /system/bin/ulimit -P $PID -c unlimited
+
diff --git a/bin/coredump_setup b/bin/coredump_setup
new file mode 100755
index 0000000..7647659
--- /dev/null
+++ b/bin/coredump_setup
@@ -0,0 +1,45 @@
+#!/bin/bash
+
+# Copyright (C) 2024 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# coredump_setup - enable core dumps globally for any process
+#                  that has the core-file-size limit set correctly
+#
+# NOTE: You must call also coredump_enable for a specific process
+#       if its core-file-size limit is not set already.
+# NOTE: Core dumps are written to ramdisk; they will not survive a reboot!
+
+set -e
+
+echo "Getting root...";
+adb root;
+adb wait-for-device;
+
+echo "Remounting root partition read-write...";
+adb shell mount -w -o remount -t rootfs rootfs;
+sleep 1;
+adb wait-for-device;
+adb shell mkdir -p /cores;
+adb shell mount -t tmpfs tmpfs /cores;
+adb shell chmod 0777 /cores;
+
+echo "Granting SELinux permission to dump in /cores...";
+adb shell restorecon -R /cores;
+
+echo "Set core pattern.";
+adb shell 'echo /cores/core.%p > /proc/sys/kernel/core_pattern';
+
+echo "Done."
+
diff --git a/bin/dirmods b/bin/dirmods
new file mode 100755
index 0000000..d43506a
--- /dev/null
+++ b/bin/dirmods
@@ -0,0 +1,52 @@
+#!/usr/bin/env python3
+
+# Copyright (C) 2024 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import sys
+sys.dont_write_bytecode = True
+
+import modinfo
+
+import os
+
+# Get the path of a specific module in the android tree, as cached in module-info.json.
+# If any build change is made, and it should be reflected in the output, you should run
+# 'refreshmod' first.  Note: This is the inverse of pathmod.
+
+def main(argv):
+    if len(argv) != 2:
+        sys.stderr.write("usage: usage: dirmods <path>\n")
+        sys.exit(1)
+
+    d = argv[1]
+    while d.endswith('/'):
+        d = d[:-1]
+    prefix = d + '/'
+
+    module_info = modinfo.ReadModuleInfo()
+
+    results = set()
+    for m in module_info.values():
+        for path in m.get(u'path', []):
+            if path == d or path.startswith(prefix):
+                name = m.get(u'module_name')
+                if name:
+                    results.add(name)
+
+    for name in sorted(results):
+        print(name)
+
+if __name__ == "__main__":
+    main(sys.argv)
diff --git a/bin/get_abs_build_var b/bin/get_abs_build_var
new file mode 100755
index 0000000..8072cf1
--- /dev/null
+++ b/bin/get_abs_build_var
@@ -0,0 +1,26 @@
+#!/bin/bash
+
+# Copyright (C) 2024 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Get the value of a build variable as an absolute path.
+
+# Common script utilities
+source $(cd $(dirname $BASH_SOURCE) &> /dev/null && pwd)/../../make/shell_utils.sh
+
+require_top
+
+$TOP/build/soong/soong_ui.bash --dumpvar-mode --abs $1
+
+exit $?
diff --git a/bin/get_build_var b/bin/get_build_var
new file mode 100755
index 0000000..9fdf55f
--- /dev/null
+++ b/bin/get_build_var
@@ -0,0 +1,26 @@
+#!/bin/bash
+
+# Copyright (C) 2024 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Get the exact value of a build variable.
+
+# Common script utilities
+source $(cd $(dirname $BASH_SOURCE) &> /dev/null && pwd)/../../make/shell_utils.sh
+
+require_top
+
+$TOP/build/soong/soong_ui.bash --dumpvar-mode $1
+
+exit $?
diff --git a/bin/getlastscreenshot b/bin/getlastscreenshot
new file mode 100755
index 0000000..dfe9a6b
--- /dev/null
+++ b/bin/getlastscreenshot
@@ -0,0 +1,33 @@
+#!/bin/bash
+
+# Copyright (C) 2024 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# coredump_enable - enable core dumps for the specified process
+# $1 = PID of process (e.g., $(pid mediaserver))
+#
+# NOTE: coredump_setup must have been called as well for a core
+#       dump to actually be generated.
+
+set -e
+
+screenshot_path=$(getscreenshotpath)
+screenshot=`adb ${adbOptions} ls ${screenshot_path} | grep Screenshot_[0-9-]*.*\.png | sort -rk 3 | cut -d " " -f 4 | head -n 1`
+if [ "$screenshot" = "" ]; then
+    echo "No screenshots found."
+    exit 1
+fi
+echo "${screenshot}"
+adb ${adbOptions} pull ${screenshot_path}/${screenshot}
+
diff --git a/bin/getprebuilt b/bin/getprebuilt
new file mode 100755
index 0000000..68e65b4
--- /dev/null
+++ b/bin/getprebuilt
@@ -0,0 +1,18 @@
+#!/bin/bash
+
+# Copyright (C) 2024 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+get_abs_build_var ANDROID_PREBUILTS
+
diff --git a/bin/getscreenshotpath b/bin/getscreenshotpath
new file mode 100755
index 0000000..ff8e327
--- /dev/null
+++ b/bin/getscreenshotpath
@@ -0,0 +1,26 @@
+#!/bin/bash
+
+# Copyright (C) 2024 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# coredump_enable - enable core dumps for the specified process
+# $1 = PID of process (e.g., $(pid mediaserver))
+#
+# NOTE: coredump_setup must have been called as well for a core
+#       dump to actually be generated.
+
+set -e
+
+echo "$(getsdcardpath)/Pictures/Screenshots"
+
diff --git a/bin/getsdcardpath b/bin/getsdcardpath
new file mode 100755
index 0000000..655659a
--- /dev/null
+++ b/bin/getsdcardpath
@@ -0,0 +1,26 @@
+#!/bin/bash
+
+# Copyright (C) 2024 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# coredump_enable - enable core dumps for the specified process
+# $1 = PID of process (e.g., $(pid mediaserver))
+#
+# NOTE: coredump_setup must have been called as well for a core
+#       dump to actually be generated.
+
+set -e
+
+adb ${adbOptions} shell echo -n \$\{EXTERNAL_STORAGE\}
+
diff --git a/bin/gettargetarch b/bin/gettargetarch
new file mode 100755
index 0000000..e53ce3f
--- /dev/null
+++ b/bin/gettargetarch
@@ -0,0 +1,18 @@
+#!/bin/bash
+
+# Copyright (C) 2024 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+get_build_var TARGET_ARCH
+
diff --git a/bin/hmm b/bin/hmm
index c3d60fa..161bad6 100755
--- a/bin/hmm
+++ b/bin/hmm
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-# Copyright (C) 2022 The Android Open Source Project
+# Copyright (C) 2024 The Android Open Source Project
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -14,6 +14,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+# Common script utilities
+source $(cd $(dirname $BASH_SOURCE) &> /dev/null && pwd)/../../make/shell_utils.sh
+
 cat <<EOF
 
 Run "m help" for help with the build system itself.
@@ -56,7 +59,6 @@
 - godir:      Go to the directory containing a file.
 - allmod:     List all modules.
 - gomod:      Go to the directory containing a module.
-- bmod:       Get the Bazel label of a Soong module if it is converted with bp2build.
 - pathmod:    Get the directory containing a module.
 - outmod:     Gets the location of a module's installed outputs with a certain extension.
 - dirmods:    Gets the modules defined in a given directory.
@@ -68,12 +70,12 @@
 - SANITIZE_HOST: Set to 'address' to use ASAN for all host modules.
 - ANDROID_QUIET_BUILD: set to 'true' to display only the essential messages.
 
-Look at build/make/envsetup for more functions:
+Look at the source to view more functions. The complete list is:
 EOF
-    local T=$(gettop)
-    local A=""
-    local i
-    for i in `(cat $T/build/envsetup.sh | sed -n "/^[[:blank:]]*function /s/function \([a-z]*\).*/\1/p" | sort | uniq`; do
+    T=$(gettop)
+    A=""
+    for i in `cat $T/build/envsetup.sh | sed -n "/^[[:blank:]]*function /s/function \([a-z_]*\).*/\1/p" | sort | uniq`; do
       A="$A $i"
     done
     echo $A
+
diff --git a/bin/installmod b/bin/installmod
new file mode 100755
index 0000000..1d0d836
--- /dev/null
+++ b/bin/installmod
@@ -0,0 +1,54 @@
+#!/bin/bash
+
+# Copyright (C) 2024 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# adb install a module's apk, as cached in module-info.json. If any build change
+# is made, and it should be reflected in the output, you should run 'refreshmod' first.
+# Usage: installmod [adb install arguments] <module>
+# For example: installmod -r Dialer -> adb install -r /path/to/Dialer.apk
+
+if [[ $# -eq 0 ]]; then
+    echo "usage: installmod [adb install arguments] <module>" >&2
+    echo "" >&2
+    echo "Only flags to be passed after the \"install\" in adb install are supported," >&2
+    echo "with the exception of -s. If -s is passed it will be placed before the \"install\"." >&2
+    echo "-s must be the first flag passed if it exists." >&2
+    return 1
+fi
+
+local _path
+_path=$(outmod ${@:$#:1})
+if [ $? -ne 0 ]; then
+    return 1
+fi
+
+_path=$(echo "$_path" | grep -E \\.apk$ | head -n 1)
+if [ -z "$_path" ]; then
+    echo "Module '$1' does not produce a file ending with .apk (try 'refreshmod' if there have been build changes?)" >&2
+    return 1
+fi
+local serial_device=""
+if [[ "$1" == "-s" ]]; then
+    if [[ $# -le 2 ]]; then
+        echo "-s requires an argument" >&2
+        return 1
+    fi
+    serial_device="-s $2"
+    shift 2
+fi
+local length=$(( $# - 1 ))
+echo adb $serial_device install ${@:1:$length} $_path
+adb $serial_device install ${@:1:$length} $_path
+
diff --git a/bin/is64bit b/bin/is64bit
new file mode 100755
index 0000000..35bbcc3
--- /dev/null
+++ b/bin/is64bit
@@ -0,0 +1,32 @@
+#!/bin/bash
+
+# Copyright (C) 2024 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Read the ELF header from /proc/$PID/exe to determine if the process is
+# 64-bit.
+
+set -e
+
+local PID="$1"
+if [ "$PID" ] ; then
+    if [[ "$(adb shell cat /proc/$PID/exe | xxd -l 1 -s 4 -p)" -eq "02" ]] ; then
+        echo "64"
+    else
+        echo ""
+    fi
+else
+    echo ""
+fi
+
diff --git a/bin/isviewserverstarted b/bin/isviewserverstarted
new file mode 100755
index 0000000..c7c82af
--- /dev/null
+++ b/bin/isviewserverstarted
@@ -0,0 +1,26 @@
+#!/bin/bash
+
+# Copyright (C) 2024 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# coredump_enable - enable core dumps for the specified process
+# $1 = PID of process (e.g., $(pid mediaserver))
+#
+# NOTE: coredump_setup must have been called as well for a core
+#       dump to actually be generated.
+
+set -e
+
+adb shell service call window 3
+
diff --git a/bin/key_back b/bin/key_back
new file mode 100755
index 0000000..2de8d07
--- /dev/null
+++ b/bin/key_back
@@ -0,0 +1,26 @@
+#!/bin/bash
+
+# Copyright (C) 2024 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# coredump_enable - enable core dumps for the specified process
+# $1 = PID of process (e.g., $(pid mediaserver))
+#
+# NOTE: coredump_setup must have been called as well for a core
+#       dump to actually be generated.
+
+set -e
+
+adb shell input keyevent 4
+
diff --git a/bin/key_home b/bin/key_home
new file mode 100755
index 0000000..653a5f9
--- /dev/null
+++ b/bin/key_home
@@ -0,0 +1,26 @@
+#!/bin/bash
+
+# Copyright (C) 2024 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# coredump_enable - enable core dumps for the specified process
+# $1 = PID of process (e.g., $(pid mediaserver))
+#
+# NOTE: coredump_setup must have been called as well for a core
+#       dump to actually be generated.
+
+set -e
+
+adb shell input keyevent 3
+
diff --git a/bin/key_menu b/bin/key_menu
new file mode 100755
index 0000000..29b2bc6
--- /dev/null
+++ b/bin/key_menu
@@ -0,0 +1,26 @@
+#!/bin/bash
+
+# Copyright (C) 2024 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# coredump_enable - enable core dumps for the specified process
+# $1 = PID of process (e.g., $(pid mediaserver))
+#
+# NOTE: coredump_setup must have been called as well for a core
+#       dump to actually be generated.
+
+set -e
+
+adb shell input keyevent 82
+
diff --git a/bin/modinfo.py b/bin/modinfo.py
new file mode 100644
index 0000000..015129f
--- /dev/null
+++ b/bin/modinfo.py
@@ -0,0 +1,44 @@
+# Copyright (C) 2024 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import json
+import os
+import pathlib
+import sys
+
+
+def OpenModuleInfoFile():
+    product_out = os.getenv("ANDROID_PRODUCT_OUT")
+    if not product_out:
+        if os.getenv("QUIET_VERIFYMODINFO") != "true":
+            sys.stderr.write("No ANDROID_PRODUCT_OUT. Try running 'lunch' first.\n")
+        sys.exit(1)
+    try:
+        return open(pathlib.Path(product_out) / "module-info.json")
+    except (FileNotFoundError, PermissionError):
+        if os.getenv("QUIET_VERIFYMODINFO") != "true":
+            sys.stderr.write("Could not find module-info.json. Please run 'refreshmod' first.\n")
+        sys.exit(1)
+
+
+def ReadModuleInfo():
+    with OpenModuleInfoFile() as f:
+        return json.load(f)
+
+def GetModule(modules, module_name):
+    if module_name not in modules:
+        sys.stderr.write(f"Could not find module '{module_name}' (try 'refreshmod' if there have been build changes?)\n")
+        sys.exit(1)
+    return modules[module_name]
+
diff --git a/bin/outmod b/bin/outmod
new file mode 100755
index 0000000..681b405
--- /dev/null
+++ b/bin/outmod
@@ -0,0 +1,39 @@
+#!/usr/bin/env python3
+
+# Copyright (C) 2024 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Get the path of a specific module in the android tree, as cached in module-info.json.
+# If any build change is made, and it should be reflected in the output, you should run
+# 'refreshmod' first.  Note: This is the inverse of dirmods.
+
+import sys
+sys.dont_write_bytecode = True
+
+import modinfo
+
+import os
+
+
+def main(argv):
+    if len(argv) != 2:
+        sys.stderr.write("usage: outmod <module>\n")
+        sys.exit(1)
+
+    for output in modinfo.GetModule(modinfo.ReadModuleInfo(), argv[1])['installed']:
+        print(os.path.join(os.getenv("ANDROID_BUILD_TOP"), output))
+
+if __name__ == "__main__":
+    main(sys.argv)
+
diff --git a/bin/pathmod b/bin/pathmod
new file mode 100755
index 0000000..90d84b5
--- /dev/null
+++ b/bin/pathmod
@@ -0,0 +1,37 @@
+#!/usr/bin/env python3
+
+# Copyright (C) 2024 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Get the path of a specific module in the android tree, as cached in module-info.json.
+# If any build change is made, and it should be reflected in the output, you should run
+# 'refreshmod' first.  Note: This is the inverse of dirmods.
+
+import sys
+sys.dont_write_bytecode = True
+
+import modinfo
+
+import os
+
+
+def main(argv):
+    if len(argv) != 2:
+        sys.stderr.write("usage: pathmod <module>\n")
+        sys.exit(1)
+
+    print(modinfo.GetModule(modinfo.ReadModuleInfo(), argv[1])['path'][0])
+
+if __name__ == "__main__":
+    main(sys.argv)
diff --git a/bin/qpid b/bin/qpid
new file mode 100755
index 0000000..b47cb6b
--- /dev/null
+++ b/bin/qpid
@@ -0,0 +1,44 @@
+#!/bin/bash
+
+# Copyright (C) 2024 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# adb install a module's apk, as cached in module-info.json. If any build change
+# is made, and it should be reflected in the output, you should run 'refreshmod' first.
+# Usage: installmod [adb install arguments] <module>
+# For example: installmod -r Dialer -> adb install -r /path/to/Dialer.apk
+
+function _impl() {
+    local prepend=''
+    local append=''
+    if [ "$1" = "--exact" ]; then
+        prepend=' '
+        append='$'
+        shift
+    elif [ "$1" = "--help" -o "$1" = "-h" ]; then
+        echo "usage: qpid [[--exact] <process name|pid>"
+        return 255
+    fi
+
+    local EXE="$1"
+    if [ "$EXE" ] ; then
+        _impl | \grep "$prepend$EXE$append"
+    else
+        adb shell ps \
+            | tr -d '\r' \
+            | sed -e 1d -e 's/^[^ ]* *\([0-9]*\).* \([^ ]*\)$/\1 \2/'
+    fi
+}
+
+_impl "$@"
diff --git a/bin/startviewserver b/bin/startviewserver
new file mode 100755
index 0000000..4d612b8
--- /dev/null
+++ b/bin/startviewserver
@@ -0,0 +1,30 @@
+#!/bin/bash
+
+# Copyright (C) 2024 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# coredump_enable - enable core dumps for the specified process
+# $1 = PID of process (e.g., $(pid mediaserver))
+#
+# NOTE: coredump_setup must have been called as well for a core
+#       dump to actually be generated.
+
+set -e
+
+port=4939
+if [ $# -gt 0 ]; then
+    port=$1
+fi
+adb shell service call window 1 i32 $port
+
diff --git a/bin/stopviewserver b/bin/stopviewserver
new file mode 100755
index 0000000..a734e4b
--- /dev/null
+++ b/bin/stopviewserver
@@ -0,0 +1,26 @@
+#!/bin/bash
+
+# Copyright (C) 2024 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# coredump_enable - enable core dumps for the specified process
+# $1 = PID of process (e.g., $(pid mediaserver))
+#
+# NOTE: coredump_setup must have been called as well for a core
+#       dump to actually be generated.
+
+set -e
+
+adb shell service call window 2
+
diff --git a/bin/systemstack b/bin/systemstack
new file mode 100755
index 0000000..b259133
--- /dev/null
+++ b/bin/systemstack
@@ -0,0 +1,21 @@
+#!/bin/bash
+
+# Copyright (C) 2024 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# systemstack - dump the current stack trace of all threads in the system process
+# to the usual ANR traces file
+
+stacks system_server
+
diff --git a/cc/androidmk.go b/cc/androidmk.go
index 0c6f97c..e1bc336 100644
--- a/cc/androidmk.go
+++ b/cc/androidmk.go
@@ -261,15 +261,6 @@
 		if library.coverageOutputFile.Valid() {
 			entries.SetString("LOCAL_PREBUILT_COVERAGE_ARCHIVE", library.coverageOutputFile.String())
 		}
-
-		if library.useCoreVariant {
-			entries.SetBool("LOCAL_UNINSTALLABLE_MODULE", true)
-			entries.SetBool("LOCAL_NO_NOTICE_FILE", true)
-			entries.SetBool("LOCAL_VNDK_DEPEND_ON_CORE_VARIANT", true)
-		}
-		if library.checkSameCoreVariant {
-			entries.SetBool("LOCAL_CHECK_SAME_VNDK_VARIANTS", true)
-		}
 	})
 
 	if library.shared() && !library.buildStubs() {
diff --git a/cc/builder.go b/cc/builder.go
index d817d82..7a3394a 100644
--- a/cc/builder.go
+++ b/cc/builder.go
@@ -638,7 +638,7 @@
 		ccCmd = "${config.ClangBin}/" + ccCmd
 
 		if flags.clangVerify {
-			postCmd = " && touch $$out"
+			postCmd = " && touch " + objFile.String()
 		}
 
 		var implicitOutputs android.WritablePaths
diff --git a/cc/cc.go b/cc/cc.go
index a64775d..cb82f86 100644
--- a/cc/cc.go
+++ b/cc/cc.go
@@ -374,10 +374,6 @@
 	// build system and source tree.
 	Cmake_snapshot_supported *bool
 
-	// Even if DeviceConfig().VndkUseCoreVariant() is set, this module must use vendor variant.
-	// see soong/cc/config/vndk.go
-	MustUseVendorVariant bool `blueprint:"mutated"`
-
 	Installable *bool `android:"arch_variant"`
 
 	// Set by factories of module types that can only be referenced from variants compiled against
@@ -479,10 +475,6 @@
 	// IsLLNDK is set to true for the vendor variant of a cc_library module that has LLNDK stubs.
 	IsLLNDK bool `blueprint:"mutated"`
 
-	// IsVNDKUsingCoreVariant is true for VNDK modules if the global VndkUseCoreVariant option is
-	// set and the module is not listed in VndkMustUseVendorVariantList.
-	IsVNDKUsingCoreVariant bool `blueprint:"mutated"`
-
 	// IsVNDKCore is set if a VNDK module does not set the vndk.support_system_process property.
 	IsVNDKCore bool `blueprint:"mutated"`
 
@@ -548,7 +540,6 @@
 	apexVariationName() string
 	apexSdkVersion() android.ApiLevel
 	bootstrap() bool
-	mustUseVendorVariant() bool
 	nativeCoverage() bool
 	directlyInAnyApex() bool
 	isPreventInstall() bool
@@ -1472,10 +1463,6 @@
 	return c.Properties.SubName
 }
 
-func (c *Module) MustUseVendorVariant() bool {
-	return c.IsVndkSp() || c.Properties.MustUseVendorVariant
-}
-
 func (c *Module) getVndkExtendsModuleName() string {
 	if vndkdep := c.vndkdep; vndkdep != nil {
 		return vndkdep.getVndkExtendsModuleName()
@@ -1768,10 +1755,6 @@
 	return ctx.mod.IsVendorPublicLibrary()
 }
 
-func (ctx *moduleContextImpl) mustUseVendorVariant() bool {
-	return ctx.mod.MustUseVendorVariant()
-}
-
 func (ctx *moduleContextImpl) selectedStl() string {
 	if stl := ctx.mod.stl; stl != nil {
 		return stl.Properties.SelectedStl
@@ -3648,12 +3631,7 @@
 		}
 	}
 
-	if ctx.DeviceConfig().VndkUseCoreVariant() && ccDep.IsVndk() && !ccDep.MustUseVendorVariant() &&
-		!c.InRamdisk() && !c.InVendorRamdisk() && !c.InRecovery() {
-		// The vendor module is a no-vendor-variant VNDK library.  Depend on the
-		// core module instead.
-		return libName
-	} else if ccDep.InVendorOrProduct() && nonSystemVariantsExist {
+	if ccDep.InVendorOrProduct() && nonSystemVariantsExist {
 		// The vendor and product modules in Make will have been renamed to not conflict with the
 		// core module, so update the dependency name here accordingly.
 		return libName + ccDep.SubName()
@@ -3866,8 +3844,6 @@
 		// TODO(b/114741097): use the correct ndk stl once build errors have been fixed
 		//family, link := getNdkStlFamilyAndLinkType(c)
 		//return fmt.Sprintf("native:ndk:%s:%s", family, link)
-	} else if actx.DeviceConfig().VndkUseCoreVariant() && !c.MustUseVendorVariant() {
-		return "native:platform_vndk"
 	} else {
 		return "native:platform"
 	}
diff --git a/cc/config/Android.bp b/cc/config/Android.bp
index fdc94ad..289409f 100644
--- a/cc/config/Android.bp
+++ b/cc/config/Android.bp
@@ -15,7 +15,6 @@
         "global.go",
         "tidy.go",
         "toolchain.go",
-        "vndk.go",
 
         "bionic.go",
 
diff --git a/cc/config/global.go b/cc/config/global.go
index 290a27d..b7ee768 100644
--- a/cc/config/global.go
+++ b/cc/config/global.go
@@ -370,8 +370,6 @@
 		"-Wno-unqualified-std-cast-call",
 		"-Wno-array-parameter",
 		"-Wno-gnu-offsetof-extensions",
-		// TODO: Enable this warning http://b/315245071
-		"-Wno-fortify-source",
 	}
 
 	llvmNextExtraCommonGlobalCflags = []string{
diff --git a/cc/config/toolchain.go b/cc/config/toolchain.go
index 7dc990b..5d8c351 100644
--- a/cc/config/toolchain.go
+++ b/cc/config/toolchain.go
@@ -209,58 +209,58 @@
 	return list
 }
 
-func LibclangRuntimeLibrary(t Toolchain, library string) string {
+func LibclangRuntimeLibrary(library string) string {
 	return "libclang_rt." + library
 }
 
-func BuiltinsRuntimeLibrary(t Toolchain) string {
-	return LibclangRuntimeLibrary(t, "builtins")
+func BuiltinsRuntimeLibrary() string {
+	return LibclangRuntimeLibrary("builtins")
 }
 
-func AddressSanitizerRuntimeLibrary(t Toolchain) string {
-	return LibclangRuntimeLibrary(t, "asan")
+func AddressSanitizerRuntimeLibrary() string {
+	return LibclangRuntimeLibrary("asan")
 }
 
-func AddressSanitizerStaticRuntimeLibrary(t Toolchain) string {
-	return LibclangRuntimeLibrary(t, "asan.static")
+func AddressSanitizerStaticRuntimeLibrary() string {
+	return LibclangRuntimeLibrary("asan.static")
 }
 
-func AddressSanitizerCXXStaticRuntimeLibrary(t Toolchain) string {
-	return LibclangRuntimeLibrary(t, "asan_cxx.static")
+func AddressSanitizerCXXStaticRuntimeLibrary() string {
+	return LibclangRuntimeLibrary("asan_cxx.static")
 }
 
-func HWAddressSanitizerRuntimeLibrary(t Toolchain) string {
-	return LibclangRuntimeLibrary(t, "hwasan")
+func HWAddressSanitizerRuntimeLibrary() string {
+	return LibclangRuntimeLibrary("hwasan")
 }
 
-func HWAddressSanitizerStaticLibrary(t Toolchain) string {
-	return LibclangRuntimeLibrary(t, "hwasan_static")
+func HWAddressSanitizerStaticLibrary() string {
+	return LibclangRuntimeLibrary("hwasan_static")
 }
 
-func UndefinedBehaviorSanitizerRuntimeLibrary(t Toolchain) string {
-	return LibclangRuntimeLibrary(t, "ubsan_standalone")
+func UndefinedBehaviorSanitizerRuntimeLibrary() string {
+	return LibclangRuntimeLibrary("ubsan_standalone")
 }
 
-func UndefinedBehaviorSanitizerMinimalRuntimeLibrary(t Toolchain) string {
-	return LibclangRuntimeLibrary(t, "ubsan_minimal")
+func UndefinedBehaviorSanitizerMinimalRuntimeLibrary() string {
+	return LibclangRuntimeLibrary("ubsan_minimal")
 }
 
-func ThreadSanitizerRuntimeLibrary(t Toolchain) string {
-	return LibclangRuntimeLibrary(t, "tsan")
+func ThreadSanitizerRuntimeLibrary() string {
+	return LibclangRuntimeLibrary("tsan")
 }
 
-func ScudoRuntimeLibrary(t Toolchain) string {
-	return LibclangRuntimeLibrary(t, "scudo")
+func ScudoRuntimeLibrary() string {
+	return LibclangRuntimeLibrary("scudo")
 }
 
-func ScudoMinimalRuntimeLibrary(t Toolchain) string {
-	return LibclangRuntimeLibrary(t, "scudo_minimal")
+func ScudoMinimalRuntimeLibrary() string {
+	return LibclangRuntimeLibrary("scudo_minimal")
 }
 
-func LibFuzzerRuntimeLibrary(t Toolchain) string {
-	return LibclangRuntimeLibrary(t, "fuzzer")
+func LibFuzzerRuntimeLibrary() string {
+	return LibclangRuntimeLibrary("fuzzer")
 }
 
-func LibFuzzerRuntimeInterceptors(t Toolchain) string {
-	return LibclangRuntimeLibrary(t, "fuzzer_interceptors")
+func LibFuzzerRuntimeInterceptors() string {
+	return LibclangRuntimeLibrary("fuzzer_interceptors")
 }
diff --git a/cc/config/vndk.go b/cc/config/vndk.go
deleted file mode 100644
index dd612ce..0000000
--- a/cc/config/vndk.go
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright 2019 Google Inc. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package config
-
-// List of VNDK libraries that have different core variant and vendor variant.
-// For these libraries, the vendor variants must be installed even if the device
-// has VndkUseCoreVariant set.
-// Note that AIDL-generated modules must use vendor variants by default.
-var VndkMustUseVendorVariantList = []string{
-	"android.hardware.nfc@1.2",
-	"libbinder",
-	"libcrypto",
-	"libexpat",
-	"libgatekeeper",
-	"libgui",
-	"libhidlcache",
-	"libkeymaster_messages",
-	"libkeymaster_portable",
-	"libmedia_omx",
-	"libpuresoftkeymasterdevice",
-	"libselinux",
-	"libsoftkeymasterdevice",
-	"libsqlite",
-	"libssl",
-	"libstagefright_bufferpool@2.0",
-	"libstagefright_bufferqueue_helper",
-	"libstagefright_foundation",
-	"libstagefright_omx",
-	"libstagefright_omx_utils",
-	"libstagefright_xmlparser",
-	"libui",
-	"libxml2",
-}
diff --git a/cc/fuzz.go b/cc/fuzz.go
index 164ec99..92f2c5e 100644
--- a/cc/fuzz.go
+++ b/cc/fuzz.go
@@ -128,13 +128,13 @@
 	if ctx.Config().Getenv("FUZZ_FRAMEWORK") == "AFL" {
 		deps.HeaderLibs = append(deps.HeaderLibs, "libafl_headers")
 	} else {
-		deps.StaticLibs = append(deps.StaticLibs, config.LibFuzzerRuntimeLibrary(ctx.toolchain()))
+		deps.StaticLibs = append(deps.StaticLibs, config.LibFuzzerRuntimeLibrary())
 		// Fuzzers built with HWASAN should use the interceptors for better
 		// mutation based on signals in strcmp, memcpy, etc. This is only needed for
 		// fuzz targets, not generic HWASAN-ified binaries or libraries.
 		if module, ok := ctx.Module().(*Module); ok {
 			if module.IsSanitizerEnabled(Hwasan) {
-				deps.StaticLibs = append(deps.StaticLibs, config.LibFuzzerRuntimeInterceptors(ctx.toolchain()))
+				deps.StaticLibs = append(deps.StaticLibs, config.LibFuzzerRuntimeInterceptors())
 			}
 		}
 	}
diff --git a/cc/library.go b/cc/library.go
index b9018a7..b9c1466 100644
--- a/cc/library.go
+++ b/cc/library.go
@@ -419,11 +419,6 @@
 
 	postInstallCmds []string
 
-	// If useCoreVariant is true, the vendor variant of a VNDK library is
-	// not installed.
-	useCoreVariant       bool
-	checkSameCoreVariant bool
-
 	skipAPIDefine bool
 
 	// Decorated interfaces
@@ -1767,27 +1762,6 @@
 				}
 			}
 
-			// In some cases we want to use core variant for VNDK-Core libs.
-			// Skip product variant since VNDKs use only the vendor variant.
-			if ctx.isVndk() && !ctx.isVndkSp() && !ctx.IsVndkExt() && !ctx.inProduct() {
-				mayUseCoreVariant := true
-
-				if ctx.mustUseVendorVariant() {
-					mayUseCoreVariant = false
-				}
-
-				if ctx.Config().CFIEnabledForPath(ctx.ModuleDir()) {
-					mayUseCoreVariant = false
-				}
-
-				if mayUseCoreVariant {
-					library.checkSameCoreVariant = true
-					if ctx.DeviceConfig().VndkUseCoreVariant() {
-						library.useCoreVariant = true
-					}
-				}
-			}
-
 			// do not install vndk libs
 			// vndk libs are packaged into VNDK APEX
 			if ctx.isVndk() && !ctx.IsVndkExt() && !ctx.Config().IsVndkDeprecated() && !ctx.inProduct() {
diff --git a/cc/linkable.go b/cc/linkable.go
index 5579aae..fecc6a2 100644
--- a/cc/linkable.go
+++ b/cc/linkable.go
@@ -165,7 +165,6 @@
 	// IsVndkSp returns true if this is a VNDK-SP module.
 	IsVndkSp() bool
 
-	MustUseVendorVariant() bool
 	IsVndk() bool
 	IsVndkExt() bool
 	IsVndkPrivate() bool
diff --git a/cc/linker.go b/cc/linker.go
index f325c12..1b5a33a 100644
--- a/cc/linker.go
+++ b/cc/linker.go
@@ -431,7 +431,7 @@
 	if ctx.toolchain().Bionic() {
 		// libclang_rt.builtins has to be last on the command line
 		if linker.Properties.libCrt() && !ctx.header() {
-			deps.UnexportedStaticLibs = append(deps.UnexportedStaticLibs, config.BuiltinsRuntimeLibrary(ctx.toolchain()))
+			deps.UnexportedStaticLibs = append(deps.UnexportedStaticLibs, config.BuiltinsRuntimeLibrary())
 		}
 
 		if inList("libdl", deps.SharedLibs) {
@@ -454,7 +454,7 @@
 		}
 	} else if ctx.toolchain().Musl() {
 		if linker.Properties.libCrt() && !ctx.header() {
-			deps.UnexportedStaticLibs = append(deps.UnexportedStaticLibs, config.BuiltinsRuntimeLibrary(ctx.toolchain()))
+			deps.UnexportedStaticLibs = append(deps.UnexportedStaticLibs, config.BuiltinsRuntimeLibrary())
 		}
 	}
 
diff --git a/cc/makevars.go b/cc/makevars.go
index 51bcbf0..9d29aff 100644
--- a/cc/makevars.go
+++ b/cc/makevars.go
@@ -28,6 +28,16 @@
 	modulesWarningsAllowedKey    = android.NewOnceKey("ModulesWarningsAllowed")
 	modulesUsingWnoErrorKey      = android.NewOnceKey("ModulesUsingWnoError")
 	modulesMissingProfileFileKey = android.NewOnceKey("ModulesMissingProfileFile")
+	sanitizerVariables           = map[string]string{
+		"ADDRESS_SANITIZER_RUNTIME_LIBRARY":   config.AddressSanitizerRuntimeLibrary(),
+		"HWADDRESS_SANITIZER_RUNTIME_LIBRARY": config.HWAddressSanitizerRuntimeLibrary(),
+		"HWADDRESS_SANITIZER_STATIC_LIBRARY":  config.HWAddressSanitizerStaticLibrary(),
+		"UBSAN_RUNTIME_LIBRARY":               config.UndefinedBehaviorSanitizerRuntimeLibrary(),
+		"UBSAN_MINIMAL_RUNTIME_LIBRARY":       config.UndefinedBehaviorSanitizerMinimalRuntimeLibrary(),
+		"TSAN_RUNTIME_LIBRARY":                config.ThreadSanitizerRuntimeLibrary(),
+		"SCUDO_RUNTIME_LIBRARY":               config.ScudoRuntimeLibrary(),
+		"SCUDO_MINIMAL_RUNTIME_LIBRARY":       config.ScudoMinimalRuntimeLibrary(),
+	}
 )
 
 func init() {
@@ -261,43 +271,9 @@
 	}, " "))
 
 	if target.Os.Class == android.Device {
-		sanitizerVariables := map[string]string{
-			"ADDRESS_SANITIZER_RUNTIME_LIBRARY":   config.AddressSanitizerRuntimeLibrary(toolchain),
-			"HWADDRESS_SANITIZER_RUNTIME_LIBRARY": config.HWAddressSanitizerRuntimeLibrary(toolchain),
-			"HWADDRESS_SANITIZER_STATIC_LIBRARY":  config.HWAddressSanitizerStaticLibrary(toolchain),
-			"UBSAN_RUNTIME_LIBRARY":               config.UndefinedBehaviorSanitizerRuntimeLibrary(toolchain),
-			"UBSAN_MINIMAL_RUNTIME_LIBRARY":       config.UndefinedBehaviorSanitizerMinimalRuntimeLibrary(toolchain),
-			"TSAN_RUNTIME_LIBRARY":                config.ThreadSanitizerRuntimeLibrary(toolchain),
-			"SCUDO_RUNTIME_LIBRARY":               config.ScudoRuntimeLibrary(toolchain),
-			"SCUDO_MINIMAL_RUNTIME_LIBRARY":       config.ScudoMinimalRuntimeLibrary(toolchain),
-		}
-
 		for variable, value := range sanitizerVariables {
 			ctx.Strict(secondPrefix+variable, value)
 		}
-
-		sanitizerLibs := android.SortedStringValues(sanitizerVariables)
-		var sanitizerLibStems []string
-		ctx.VisitAllModules(func(m android.Module) {
-			if !m.Enabled(ctx) {
-				return
-			}
-
-			ccModule, _ := m.(*Module)
-			if ccModule == nil || ccModule.library == nil || !ccModule.library.shared() {
-				return
-			}
-
-			if android.InList(strings.TrimPrefix(ctx.ModuleName(m), "prebuilt_"), sanitizerLibs) &&
-				m.Target().Os == target.Os && m.Target().Arch.ArchType == target.Arch.ArchType {
-				outputFile := ccModule.outputFile
-				if outputFile.Valid() {
-					sanitizerLibStems = append(sanitizerLibStems, outputFile.Path().Base())
-				}
-			}
-		})
-		sanitizerLibStems = android.SortedUniqueStrings(sanitizerLibStems)
-		ctx.Strict(secondPrefix+"SANITIZER_STEMS", strings.Join(sanitizerLibStems, " "))
 	}
 
 	// This is used by external/gentoo/...
diff --git a/cc/sanitize.go b/cc/sanitize.go
index 1a94729..e6075ad 100644
--- a/cc/sanitize.go
+++ b/cc/sanitize.go
@@ -25,6 +25,7 @@
 
 	"android/soong/android"
 	"android/soong/cc/config"
+	"android/soong/etc"
 )
 
 var (
@@ -408,6 +409,8 @@
 	android.RegisterMakeVarsProvider(pctx, cfiMakeVarsProvider)
 	android.RegisterMakeVarsProvider(pctx, hwasanMakeVarsProvider)
 	android.RegisterMakeVarsProvider(pctx, memtagStackMakeVarsProvider)
+
+	RegisterSanitizerLibrariesTxtType(android.InitRegistrationContext)
 }
 
 func (sanitize *sanitize) props() []interface{} {
@@ -1316,7 +1319,7 @@
 				} else if s.sanitizer == cfi {
 					cfiStaticLibs(mctx.Config()).add(c, c.Module().Name())
 				} else if s.sanitizer == Memtag_stack {
-					memtagStackStaticLibs(mctx.Config()).add(c, c.Module().Name());
+					memtagStackStaticLibs(mctx.Config()).add(c, c.Module().Name())
 				}
 			}
 		} else if c.IsSanitizerEnabled(s.sanitizer) {
@@ -1522,25 +1525,25 @@
 		if Bool(sanProps.Address) {
 			if toolchain.Musl() || (c.staticBinary() && toolchain.Bionic()) {
 				// Use a static runtime for musl to match what clang does for glibc.
-				addStaticDeps(config.AddressSanitizerStaticRuntimeLibrary(toolchain), false)
-				addStaticDeps(config.AddressSanitizerCXXStaticRuntimeLibrary(toolchain), false)
+				addStaticDeps(config.AddressSanitizerStaticRuntimeLibrary(), false)
+				addStaticDeps(config.AddressSanitizerCXXStaticRuntimeLibrary(), false)
 			} else {
-				runtimeSharedLibrary = config.AddressSanitizerRuntimeLibrary(toolchain)
+				runtimeSharedLibrary = config.AddressSanitizerRuntimeLibrary()
 			}
 		} else if Bool(sanProps.Hwaddress) {
 			if c.staticBinary() {
-				addStaticDeps(config.HWAddressSanitizerStaticLibrary(toolchain), true)
+				addStaticDeps(config.HWAddressSanitizerStaticLibrary(), true)
 				addStaticDeps("libdl", false)
 			} else {
-				runtimeSharedLibrary = config.HWAddressSanitizerRuntimeLibrary(toolchain)
+				runtimeSharedLibrary = config.HWAddressSanitizerRuntimeLibrary()
 			}
 		} else if Bool(sanProps.Thread) {
-			runtimeSharedLibrary = config.ThreadSanitizerRuntimeLibrary(toolchain)
+			runtimeSharedLibrary = config.ThreadSanitizerRuntimeLibrary()
 		} else if Bool(sanProps.Scudo) {
 			if len(diagSanitizers) == 0 && !c.sanitize.Properties.UbsanRuntimeDep {
-				runtimeSharedLibrary = config.ScudoMinimalRuntimeLibrary(toolchain)
+				runtimeSharedLibrary = config.ScudoMinimalRuntimeLibrary()
 			} else {
-				runtimeSharedLibrary = config.ScudoRuntimeLibrary(toolchain)
+				runtimeSharedLibrary = config.ScudoRuntimeLibrary()
 			}
 		} else if len(diagSanitizers) > 0 || c.sanitize.Properties.UbsanRuntimeDep ||
 			Bool(sanProps.Fuzzer) ||
@@ -1553,17 +1556,17 @@
 				// Also manually add a static runtime for musl to match what clang does for glibc.
 				// Otherwise dlopening libraries that depend on libclang_rt.ubsan_standalone.so fails with:
 				// Error relocating ...: initial-exec TLS resolves to dynamic definition
-				addStaticDeps(config.UndefinedBehaviorSanitizerRuntimeLibrary(toolchain)+".static", true)
+				addStaticDeps(config.UndefinedBehaviorSanitizerRuntimeLibrary()+".static", true)
 			} else {
-				runtimeSharedLibrary = config.UndefinedBehaviorSanitizerRuntimeLibrary(toolchain)
+				runtimeSharedLibrary = config.UndefinedBehaviorSanitizerRuntimeLibrary()
 			}
 		}
 
 		if enableMinimalRuntime(c.sanitize) || c.sanitize.Properties.MinimalRuntimeDep {
-			addStaticDeps(config.UndefinedBehaviorSanitizerMinimalRuntimeLibrary(toolchain), true)
+			addStaticDeps(config.UndefinedBehaviorSanitizerMinimalRuntimeLibrary(), true)
 		}
 		if c.sanitize.Properties.BuiltinsDep {
-			addStaticDeps(config.BuiltinsRuntimeLibrary(toolchain), true)
+			addStaticDeps(config.BuiltinsRuntimeLibrary(), true)
 		}
 
 		if runtimeSharedLibrary != "" && (toolchain.Bionic() || toolchain.Musl()) {
@@ -1787,3 +1790,126 @@
 func memtagStackMakeVarsProvider(ctx android.MakeVarsContext) {
 	memtagStackStaticLibs(ctx.Config()).exportToMake(ctx)
 }
+
+type sanitizerLibrariesTxtModule struct {
+	android.ModuleBase
+
+	outputFile android.OutputPath
+}
+
+var _ etc.PrebuiltEtcModule = (*sanitizerLibrariesTxtModule)(nil)
+var _ android.OutputFileProducer = (*sanitizerLibrariesTxtModule)(nil)
+
+func RegisterSanitizerLibrariesTxtType(ctx android.RegistrationContext) {
+	ctx.RegisterModuleType("sanitizer_libraries_txt", sanitizerLibrariesTxtFactory)
+}
+
+func sanitizerLibrariesTxtFactory() android.Module {
+	m := &sanitizerLibrariesTxtModule{}
+	android.InitAndroidArchModule(m, android.DeviceSupported, android.MultilibCommon)
+	return m
+}
+
+type sanitizerLibraryDependencyTag struct {
+	blueprint.BaseDependencyTag
+}
+
+func (t sanitizerLibraryDependencyTag) AllowDisabledModuleDependency(target android.Module) bool {
+	return true
+}
+
+var _ android.AllowDisabledModuleDependency = (*sanitizerLibraryDependencyTag)(nil)
+
+func (txt *sanitizerLibrariesTxtModule) DepsMutator(actx android.BottomUpMutatorContext) {
+	targets := actx.Config().Targets[android.Android]
+	depTag := sanitizerLibraryDependencyTag{}
+
+	for _, target := range targets {
+		variation := append(target.Variations(),
+			blueprint.Variation{Mutator: "image", Variation: ""},
+			blueprint.Variation{Mutator: "sdk", Variation: ""},
+			blueprint.Variation{Mutator: "link", Variation: "shared"},
+		)
+		for _, lib := range android.SortedStringValues(sanitizerVariables) {
+			if actx.OtherModuleFarDependencyVariantExists(variation, lib) {
+				actx.AddFarVariationDependencies(variation, depTag, lib)
+			}
+
+			prebuiltLibName := "prebuilt_" + lib
+			if actx.OtherModuleFarDependencyVariantExists(variation, prebuiltLibName) {
+				actx.AddFarVariationDependencies(variation, depTag, prebuiltLibName)
+			}
+		}
+	}
+
+}
+
+func (txt *sanitizerLibrariesTxtModule) getSanitizerLibs(ctx android.ModuleContext) string {
+	var sanitizerLibStems []string
+
+	ctx.VisitDirectDepsIf(func(m android.Module) bool {
+		if !m.Enabled(ctx) {
+			return false
+		}
+
+		ccModule, _ := m.(*Module)
+		if ccModule == nil || ccModule.library == nil || !ccModule.library.shared() {
+			return false
+		}
+
+		targets := ctx.Config().Targets[android.Android]
+
+		for _, target := range targets {
+			if m.Target().Os == target.Os && m.Target().Arch.ArchType == target.Arch.ArchType {
+				return true
+			}
+		}
+
+		return false
+	}, func(m android.Module) {
+		ccModule, _ := m.(*Module)
+		outputFile := ccModule.outputFile
+		if outputFile.Valid() {
+			sanitizerLibStems = append(sanitizerLibStems, outputFile.Path().Base())
+		}
+	})
+
+	sanitizerLibStems = android.SortedUniqueStrings(sanitizerLibStems)
+	return strings.Join(sanitizerLibStems, "\n")
+}
+
+func (txt *sanitizerLibrariesTxtModule) GenerateAndroidBuildActions(ctx android.ModuleContext) {
+	filename := txt.Name()
+
+	txt.outputFile = android.PathForModuleOut(ctx, filename).OutputPath
+	android.WriteFileRule(ctx, txt.outputFile, txt.getSanitizerLibs(ctx))
+
+	installPath := android.PathForModuleInstall(ctx, "etc")
+	ctx.InstallFile(installPath, filename, txt.outputFile)
+}
+
+func (txt *sanitizerLibrariesTxtModule) AndroidMkEntries() []android.AndroidMkEntries {
+	return []android.AndroidMkEntries{{
+		Class:      "ETC",
+		OutputFile: android.OptionalPathForPath(txt.outputFile),
+	}}
+}
+
+// PrebuiltEtcModule interface
+func (txt *sanitizerLibrariesTxtModule) OutputFile() android.OutputPath {
+	return txt.outputFile
+}
+
+// PrebuiltEtcModule interface
+func (txt *sanitizerLibrariesTxtModule) BaseDir() string {
+	return "etc"
+}
+
+// PrebuiltEtcModule interface
+func (txt *sanitizerLibrariesTxtModule) SubDir() string {
+	return ""
+}
+
+func (txt *sanitizerLibrariesTxtModule) OutputFiles(tag string) (android.Paths, error) {
+	return android.Paths{txt.outputFile}, nil
+}
diff --git a/cc/vndk.go b/cc/vndk.go
index 548992d..ea55835 100644
--- a/cc/vndk.go
+++ b/cc/vndk.go
@@ -20,7 +20,6 @@
 	"strings"
 
 	"android/soong/android"
-	"android/soong/cc/config"
 	"android/soong/etc"
 
 	"github.com/google/blueprint"
@@ -219,11 +218,10 @@
 type moduleListerFunc func(ctx android.SingletonContext) (moduleNames, fileNames []string)
 
 var (
-	vndkSPLibraries               = vndkModuleLister(func(m *Module) bool { return m.VendorProperties.IsVNDKSP })
-	vndkCoreLibraries             = vndkModuleLister(func(m *Module) bool { return m.VendorProperties.IsVNDKCore })
-	vndkPrivateLibraries          = vndkModuleLister(func(m *Module) bool { return m.VendorProperties.IsVNDKPrivate })
-	vndkProductLibraries          = vndkModuleLister(func(m *Module) bool { return m.VendorProperties.IsVNDKProduct })
-	vndkUsingCoreVariantLibraries = vndkModuleLister(func(m *Module) bool { return m.VendorProperties.IsVNDKUsingCoreVariant })
+	vndkSPLibraries      = vndkModuleLister(func(m *Module) bool { return m.VendorProperties.IsVNDKSP })
+	vndkCoreLibraries    = vndkModuleLister(func(m *Module) bool { return m.VendorProperties.IsVNDKCore })
+	vndkPrivateLibraries = vndkModuleLister(func(m *Module) bool { return m.VendorProperties.IsVNDKPrivate })
+	vndkProductLibraries = vndkModuleLister(func(m *Module) bool { return m.VendorProperties.IsVNDKProduct })
 )
 
 // vndkModuleLister takes a predicate that operates on a Module and returns a moduleListerFunc
@@ -266,22 +264,6 @@
 	}
 }
 
-var vndkMustUseVendorVariantListKey = android.NewOnceKey("vndkMustUseVendorVariantListKey")
-
-func vndkMustUseVendorVariantList(cfg android.Config) []string {
-	return cfg.Once(vndkMustUseVendorVariantListKey, func() interface{} {
-		return config.VndkMustUseVendorVariantList
-	}).([]string)
-}
-
-// test may call this to override global configuration(config.VndkMustUseVendorVariantList)
-// when it is called, it must be before the first call to vndkMustUseVendorVariantList()
-func setVndkMustUseVendorVariantListForTest(config android.Config, mustUseVendorVariantList []string) {
-	config.Once(vndkMustUseVendorVariantListKey, func() interface{} {
-		return mustUseVendorVariantList
-	})
-}
-
 func processVndkLibrary(mctx android.BottomUpMutatorContext, m *Module) {
 	if m.InProduct() {
 		// We may skip the steps for the product variants because they
@@ -301,13 +283,6 @@
 		mctx.PropertyErrorf("vndk.enabled", "This library provides stubs. Shouldn't be VNDK. Consider making it as LLNDK")
 	}
 
-	if inList(name, vndkMustUseVendorVariantList(mctx.Config())) {
-		m.Properties.MustUseVendorVariant = true
-	}
-	if mctx.DeviceConfig().VndkUseCoreVariant() && !m.Properties.MustUseVendorVariant {
-		m.VendorProperties.IsVNDKUsingCoreVariant = true
-	}
-
 	if m.vndkdep.isVndkSp() {
 		m.VendorProperties.IsVNDKSP = true
 	} else {
@@ -356,8 +331,7 @@
 		if lib.buildStubs() {
 			return false
 		}
-		useCoreVariant := mctx.DeviceConfig().VndkUseCoreVariant() && !m.MustUseVendorVariant()
-		return lib.shared() && m.InVendor() && m.IsVndk() && !m.IsVndkExt() && !useCoreVariant
+		return lib.shared() && m.InVendor() && m.IsVndk() && !m.IsVndkExt()
 	}
 	return false
 }
@@ -400,7 +374,6 @@
 	ctx.RegisterParallelSingletonModuleType("vndkcore_libraries_txt", vndkCoreLibrariesTxtFactory)
 	ctx.RegisterParallelSingletonModuleType("vndkprivate_libraries_txt", vndkPrivateLibrariesTxtFactory)
 	ctx.RegisterParallelSingletonModuleType("vndkproduct_libraries_txt", vndkProductLibrariesTxtFactory)
-	ctx.RegisterParallelSingletonModuleType("vndkcorevariant_libraries_txt", vndkUsingCoreVariantLibrariesTxtFactory)
 }
 
 type vndkLibrariesTxt struct {
@@ -453,13 +426,6 @@
 	return newVndkLibrariesTxt(vndkProductLibraries, "VNDK_PRODUCT_LIBRARIES")
 }
 
-// vndkcorevariant_libraries_txt is a singleton module whose content is a list of VNDK libraries
-// that are using the core variant, generated by Soong but can be referenced by other modules.
-// For example, apex_vndk can depend on these files as prebuilt.
-func vndkUsingCoreVariantLibrariesTxtFactory() android.SingletonModule {
-	return newVndkLibrariesTxt(vndkUsingCoreVariantLibraries, "VNDK_USING_CORE_VARIANT_LIBRARIES")
-}
-
 func newVndkLibrariesWithMakeVarFilter(lister moduleListerFunc, makeVarName string, filter string) android.SingletonModule {
 	m := &vndkLibrariesTxt{
 		lister:               lister,
diff --git a/cmd/release_config/build_flag_declarations/main.go b/cmd/release_config/build_flag_declarations/main.go
index 7fdd084..cc286b6 100644
--- a/cmd/release_config/build_flag_declarations/main.go
+++ b/cmd/release_config/build_flag_declarations/main.go
@@ -6,6 +6,7 @@
 	"os"
 
 	rc_lib "android/soong/cmd/release_config/release_config_lib"
+	rc_proto "android/soong/cmd/release_config/release_config_proto"
 )
 
 type Flags struct {
@@ -62,18 +63,17 @@
 	}
 
 	flagArtifacts := rc_lib.FlagArtifactsFactory("")
+	intermediates := []*rc_proto.FlagDeclarationArtifacts{}
 	for _, intermediate := range flags.intermediates {
-		fas := rc_lib.FlagArtifactsFactory(intermediate)
-		for _, fa := range *fas {
-			(*flagArtifacts)[*fa.FlagDeclaration.Name] = fa
-		}
+		fda := rc_lib.FlagDeclarationArtifactsFactory(intermediate)
+		intermediates = append(intermediates, fda)
 	}
 	for _, decl := range flags.decls {
 		fa := rc_lib.FlagArtifactFactory(decl)
 		(*flagArtifacts)[*fa.FlagDeclaration.Name] = fa
 	}
 
-	message := flagArtifacts.GenerateFlagDeclarationArtifacts()
+	message := flagArtifacts.GenerateFlagDeclarationArtifacts(intermediates)
 	err = rc_lib.WriteFormattedMessage(flags.output, flags.format, message)
 	if err != nil {
 		errorExit(err)
diff --git a/cmd/release_config/release_config_lib/flag_artifact.go b/cmd/release_config/release_config_lib/flag_artifact.go
index 6919ff5..6d36595 100644
--- a/cmd/release_config/release_config_lib/flag_artifact.go
+++ b/cmd/release_config/release_config_lib/flag_artifact.go
@@ -102,11 +102,24 @@
 	return ret
 }
 
-func (fas *FlagArtifacts) GenerateFlagDeclarationArtifacts() *rc_proto.FlagDeclarationArtifacts {
+func FlagDeclarationArtifactsFactory(path string) *rc_proto.FlagDeclarationArtifacts {
+	ret := &rc_proto.FlagDeclarationArtifacts{}
+	if path != "" {
+		LoadMessage(path, ret)
+	} else {
+		ret.FlagDeclarationArtifacts = []*rc_proto.FlagDeclarationArtifact{}
+	}
+	return ret
+}
+
+func (fas *FlagArtifacts) GenerateFlagDeclarationArtifacts(intermediates []*rc_proto.FlagDeclarationArtifacts) *rc_proto.FlagDeclarationArtifacts {
 	ret := &rc_proto.FlagDeclarationArtifacts{FlagDeclarationArtifacts: []*rc_proto.FlagDeclarationArtifact{}}
 	for _, fa := range *fas {
 		ret.FlagDeclarationArtifacts = append(ret.FlagDeclarationArtifacts, fa.GenerateFlagDeclarationArtifact())
 	}
+	for _, fda := range intermediates {
+		ret.FlagDeclarationArtifacts = append(ret.FlagDeclarationArtifacts, fda.FlagDeclarationArtifacts...)
+	}
 	slices.SortFunc(ret.FlagDeclarationArtifacts, func(a, b *rc_proto.FlagDeclarationArtifact) int {
 		return cmp.Compare(*a.Name, *b.Name)
 	})
diff --git a/etc/prebuilt_etc.go b/etc/prebuilt_etc.go
index e168edc..fd3b27f 100644
--- a/etc/prebuilt_etc.go
+++ b/etc/prebuilt_etc.go
@@ -74,11 +74,11 @@
 type prebuiltEtcProperties struct {
 	// Source file of this prebuilt. Can reference a genrule type module with the ":module" syntax.
 	// Mutually exclusive with srcs.
-	Src *string `android:"path,arch_variant"`
+	Src proptools.Configurable[string] `android:"path,arch_variant,replace_instead_of_append"`
 
 	// Source files of this prebuilt. Can reference a genrule type module with the ":module" syntax.
 	// Mutually exclusive with src. When used, filename_from_src is set to true.
-	Srcs []string `android:"path,arch_variant"`
+	Srcs proptools.Configurable[[]string] `android:"path,arch_variant"`
 
 	// Optional name for the installed file. If unspecified, name of the module is used as the file
 	// name. Only available when using a single source (src).
@@ -158,6 +158,8 @@
 	installDirPath         android.InstallPath
 	additionalDependencies *android.Paths
 
+	usedSrcsProperty bool
+
 	makeClass string
 }
 
@@ -247,10 +249,10 @@
 }
 
 func (p *PrebuiltEtc) SourceFilePath(ctx android.ModuleContext) android.Path {
-	if len(p.properties.Srcs) > 0 {
+	if len(p.properties.Srcs.GetOrDefault(ctx, nil)) > 0 {
 		panic(fmt.Errorf("SourceFilePath not available on multi-source prebuilt %q", p.Name()))
 	}
-	return android.PathForModuleSrc(ctx, proptools.String(p.properties.Src))
+	return android.PathForModuleSrc(ctx, p.properties.Src.GetOrDefault(ctx, ""))
 }
 
 func (p *PrebuiltEtc) InstallDirPath() android.InstallPath {
@@ -264,7 +266,7 @@
 }
 
 func (p *PrebuiltEtc) OutputFile() android.OutputPath {
-	if len(p.properties.Srcs) > 0 {
+	if p.usedSrcsProperty {
 		panic(fmt.Errorf("OutputFile not available on multi-source prebuilt %q", p.Name()))
 	}
 	return p.outputFilePaths[0]
@@ -319,7 +321,9 @@
 func (p *PrebuiltEtc) GenerateAndroidBuildActions(ctx android.ModuleContext) {
 	var installs []installProperties
 
-	if p.properties.Src != nil && len(p.properties.Srcs) > 0 {
+	srcProperty := p.properties.Src.Get(ctx)
+	srcsProperty := p.properties.Srcs.GetOrDefault(ctx, nil)
+	if srcProperty.IsPresent() && len(srcsProperty) > 0 {
 		ctx.PropertyErrorf("src", "src is set. Cannot set srcs")
 	}
 
@@ -331,8 +335,8 @@
 
 	filename := proptools.String(p.properties.Filename)
 	filenameFromSrc := proptools.Bool(p.properties.Filename_from_src)
-	if p.properties.Src != nil {
-		p.sourceFilePaths = android.PathsForModuleSrc(ctx, []string{proptools.String(p.properties.Src)})
+	if srcProperty.IsPresent() {
+		p.sourceFilePaths = android.PathsForModuleSrc(ctx, []string{srcProperty.Get()})
 		// If the source was not found, set a fake source path to
 		// support AllowMissingDependencies executions.
 		if len(p.sourceFilePaths) == 0 {
@@ -367,7 +371,8 @@
 			symlinks:       p.properties.Symlinks,
 		}
 		installs = append(installs, ip)
-	} else if len(p.properties.Srcs) > 0 {
+	} else if len(srcsProperty) > 0 {
+		p.usedSrcsProperty = true
 		if filename != "" {
 			ctx.PropertyErrorf("filename", "filename cannot be set when using srcs")
 		}
@@ -377,7 +382,7 @@
 		if p.properties.Filename_from_src != nil {
 			ctx.PropertyErrorf("filename_from_src", "filename_from_src is implicitly set to true when using srcs")
 		}
-		p.sourceFilePaths = android.PathsForModuleSrc(ctx, p.properties.Srcs)
+		p.sourceFilePaths = android.PathsForModuleSrc(ctx, srcsProperty)
 		for _, src := range p.sourceFilePaths {
 			filename := src.Base()
 			output := android.PathForModuleOut(ctx, filename).OutputPath
diff --git a/go.mod b/go.mod
index 1174958..13834fc 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module android/soong
 
-go 1.21
+go 1.22
 
 require (
 	github.com/google/blueprint v0.0.0
diff --git a/go.work b/go.work
index 7c6022b..9a7e6db 100644
--- a/go.work
+++ b/go.work
@@ -1,4 +1,4 @@
-go 1.21
+go 1.22
 
 use (
 	.
diff --git a/java/base.go b/java/base.go
index d04e97c..b9e236c 100644
--- a/java/base.go
+++ b/java/base.go
@@ -716,11 +716,7 @@
 	apexInfo, _ := android.ModuleProvider(ctx, android.ApexInfoProvider)
 	isJacocoAgent := ctx.ModuleName() == "jacocoagent"
 
-	isApexVariantSdkLibImplLib := j.SdkLibraryName() != nil &&
-		strings.HasSuffix(j.Name(), ".impl") &&
-		len(apexInfo.InApexVariants) > 0
-
-	if (j.DirectlyInAnyApex() || isApexVariantSdkLibImplLib) && !isJacocoAgent && !apexInfo.IsForPlatform() {
+	if j.DirectlyInAnyApex() && !isJacocoAgent && !apexInfo.IsForPlatform() {
 		if !inList(ctx.ModuleName(), config.InstrumentFrameworkModules) {
 			return true
 		} else if ctx.Config().IsEnvTrue("EMMA_INSTRUMENT_FRAMEWORK") {
diff --git a/java/droidstubs.go b/java/droidstubs.go
index ca81343..b94ad16 100644
--- a/java/droidstubs.go
+++ b/java/droidstubs.go
@@ -993,6 +993,7 @@
 func (d *Droidstubs) everythingOptionalCmd(ctx android.ModuleContext, cmd *android.RuleBuilderCommand, doApiLint bool, doCheckReleased bool) {
 
 	// Add API lint options.
+	treatDocumentationIssuesAsErrors := false
 	if doApiLint {
 		var newSince android.Paths
 		if d.properties.Check_api.Api_lint.New_since != nil {
@@ -1006,7 +1007,7 @@
 		// TODO(b/154317059): Clean up this allowlist by baselining and/or checking in last-released.
 		if d.Name() != "android.car-system-stubs-docs" &&
 			d.Name() != "android.car-stubs-docs" {
-			cmd.Flag("--lints-as-errors")
+			treatDocumentationIssuesAsErrors = true
 			cmd.Flag("--warnings-as-errors") // Most lints are actually warnings.
 		}
 
@@ -1052,6 +1053,11 @@
 		cmd.FlagWithArg("--error-message:api-lint ", msg)
 	}
 
+	if !treatDocumentationIssuesAsErrors {
+		// Treat documentation issues as warnings, but error when new.
+		cmd.Flag("--error-when-new-category").Flag("Documentation")
+	}
+
 	// Add "check released" options. (Detect incompatible API changes from the last public release)
 	if doCheckReleased {
 		baselineFile := android.OptionalPathForModuleSrc(ctx, d.properties.Check_api.Last_released.Baseline_file)
diff --git a/java/java.go b/java/java.go
index e3f4824..9fe7a2f 100644
--- a/java/java.go
+++ b/java/java.go
@@ -567,6 +567,12 @@
 		return normalizeJavaVersion(ctx, javaVersion)
 	} else if ctx.Device() {
 		return defaultJavaLanguageVersion(ctx, sdkContext.SdkVersion(ctx))
+	} else if ctx.Config().TargetsJava21() {
+		// Temporary experimental flag to be able to try and build with
+		// java version 21 options.  The flag, if used, just sets Java
+		// 21 as the default version, leaving any components that
+		// target an older version intact.
+		return JAVA_VERSION_21
 	} else {
 		return JAVA_VERSION_17
 	}
diff --git a/java/sdk.go b/java/sdk.go
index d972c19..4ef4ee2 100644
--- a/java/sdk.go
+++ b/java/sdk.go
@@ -65,6 +65,12 @@
 		return JAVA_VERSION_9
 	} else if sdk.FinalOrFutureInt() <= 33 {
 		return JAVA_VERSION_11
+	} else if ctx.Config().TargetsJava21() {
+		// Temporary experimental flag to be able to try and build with
+		// java version 21 options.  The flag, if used, just sets Java
+		// 21 as the default version, leaving any components that
+		// target an older version intact.
+		return JAVA_VERSION_21
 	} else {
 		return JAVA_VERSION_17
 	}
diff --git a/java/sdk_library.go b/java/sdk_library.go
index 8c91288..72eb6e3 100644
--- a/java/sdk_library.go
+++ b/java/sdk_library.go
@@ -1506,6 +1506,12 @@
 
 var _ android.InstallNeededDependencyTag = sdkLibraryComponentTag{}
 
+// To satisfy the CopyDirectlyInAnyApexTag interface. Implementation library of the sdk library
+// in an apex is considered to be directly in the apex, as if it was listed in java_libs.
+func (t sdkLibraryComponentTag) CopyDirectlyInAnyApex() {}
+
+var _ android.CopyDirectlyInAnyApexTag = implLibraryTag
+
 func (t sdkLibraryComponentTag) InstallDepNeeded() bool {
 	return t.name == "xml-permissions-file" || t.name == "impl-library"
 }
diff --git a/rust/compiler.go b/rust/compiler.go
index efc3dee..a2546a1 100644
--- a/rust/compiler.go
+++ b/rust/compiler.go
@@ -197,7 +197,7 @@
 	Features []string `android:"arch_variant"`
 
 	// list of configuration options to enable for this crate. To enable features, use the "features" property.
-	Cfgs []string `android:"arch_variant"`
+	Cfgs proptools.Configurable[[]string] `android:"arch_variant"`
 
 	// specific rust edition that should be used if the default version is not desired
 	Edition *string `android:"arch_variant"`
@@ -338,7 +338,7 @@
 }
 
 func cfgsToFlags(cfgs []string) []string {
-	flags := []string{}
+	flags := make([]string, 0, len(cfgs))
 	for _, cfg := range cfgs {
 		flags = append(flags, "--cfg '"+cfg+"'")
 	}
@@ -385,8 +385,9 @@
 func (compiler *baseCompiler) cfgFlags(ctx ModuleContext, flags Flags) Flags {
 	flags = CommonDefaultCfgFlags(flags, ctx.RustModule().InVendor(), ctx.RustModule().InProduct())
 
-	flags.RustFlags = append(flags.RustFlags, cfgsToFlags(compiler.Properties.Cfgs)...)
-	flags.RustdocFlags = append(flags.RustdocFlags, cfgsToFlags(compiler.Properties.Cfgs)...)
+	cfgFlags := cfgsToFlags(compiler.Properties.Cfgs.GetOrDefault(ctx, nil))
+	flags.RustFlags = append(flags.RustFlags, cfgFlags...)
+	flags.RustdocFlags = append(flags.RustdocFlags, cfgFlags...)
 
 	return flags
 }
diff --git a/rust/library.go b/rust/library.go
index 1eb0c5e..2a21263 100644
--- a/rust/library.go
+++ b/rust/library.go
@@ -504,15 +504,19 @@
 	flags = library.baseCompiler.cfgFlags(ctx, flags)
 	flags = CommonLibraryCfgFlags(ctx, flags)
 
+	cfgs := library.baseCompiler.Properties.Cfgs.GetOrDefault(ctx, nil)
+
 	if library.dylib() {
 		// We need to add a dependency on std in order to link crates as dylibs.
 		// The hack to add this dependency is guarded by the following cfg so
 		// that we don't force a dependency when it isn't needed.
-		library.baseCompiler.Properties.Cfgs = append(library.baseCompiler.Properties.Cfgs, "android_dylib")
+		cfgs = append(cfgs, "android_dylib")
 	}
 
-	flags.RustFlags = append(flags.RustFlags, cfgsToFlags(library.baseCompiler.Properties.Cfgs)...)
-	flags.RustdocFlags = append(flags.RustdocFlags, cfgsToFlags(library.baseCompiler.Properties.Cfgs)...)
+	cfgFlags := cfgsToFlags(cfgs)
+
+	flags.RustFlags = append(flags.RustFlags, cfgFlags...)
+	flags.RustdocFlags = append(flags.RustdocFlags, cfgFlags...)
 
 	return flags
 }
diff --git a/rust/rust.go b/rust/rust.go
index 93853e5..5790dd6 100644
--- a/rust/rust.go
+++ b/rust/rust.go
@@ -341,10 +341,6 @@
 	return Bool(mod.Properties.Bootstrap)
 }
 
-func (mod *Module) MustUseVendorVariant() bool {
-	return true
-}
-
 func (mod *Module) SubName() string {
 	return mod.Properties.SubName
 }